Solve 6 please 5. Consider the electrochemical cell: Cu/10-4 M Cu2+, 1M H+/Pt/H2 (a=1). Determine theequilibrium potential versus the indicated reference electrode.a. 0.342 V.b. 0.082 V. c. 0.222 V. 0.462 V.6. Consider the reaction, Fe³+ + e = Fe²+. The exchange current density, io, for the reaction on Ptis 0.005 mA/cm² and the transfer coefficient is 0.50. Calculate the current density of thereaction at 0.971 V.a. 2450 mA/cm² b. 245 mA/cm²Page 2 of 4c. 24.5 mA/cm²d. 2.45 mA/cm²

Introduce Buttler-Volmer equationwhere,

6. Consider the reaction, Fe³+ + e = Fe2+. The exchange current density, io, for the reaction on Pt is 0.005 mA/cm² and the transfer coefficient is 0.50. Calculate the current density of the reaction at 0.971 V. a. 2450 mA/cm2 b. 245 mA/cm² c. 24.5 mA/cm² d. 2.45 mA/cm²

6. Consider the reaction, Fe³+ + e = Fe2+. The exchange current density, io, for the reaction on Pt is 0.005 mA/cm² and the transfer coefficient is 0.50. Calculate the current density of the reaction at 0.971 V. a. 2450 mA/cm2 b. 245 mA/cm² c. 24.5 mA/cm² d. 2.45 mA/cm²

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.23QAP

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Question

Solve 6 please

5. Consider the electrochemical cell: Cu/10-4 M Cu2+, 1M H+/Pt/H2 (a=1). Determine the
equilibrium potential versus the indicated reference electrode.
a. 0.342 V.
b. 0.082 V. c. 0.222 V. 0.462 V.
6. Consider the reaction, Fe³+ + e = Fe²+. The exchange current density, io, for the reaction on Pt
is 0.005 mA/cm² and the transfer coefficient is 0.50. Calculate the current density of the
reaction at 0.971 V.
a. 2450 mA/cm² b. 245 mA/cm²
Page 2 of 4
c. 24.5 mA/cm²
d. 2.45 mA/cm²

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